This document outlines a 2 1/2 week lesson plan for a 6th grade natural sciences and technology class on mains electricity. The lesson aims to teach learners about generating electricity from coal, the cost and environmental impact of electricity usage, and renewable energy sources. Activities include investigations on appliances' power usage, tracing electricity from power stations to homes, and researching renewable energy. Learners will be assessed through formal and informal means such as classwork, memos, tests, and practical demonstrations. Additional support is provided for learners with barriers.

1. NATURAL SCIENCES AND TECHNOLOGY LESSON PREPARATION
Subject: Natural sciences and Technology Grade: Six
Topic: Mains electricity Time in weeks: 2 ½ weeks
Date started (actual): Date completed (actual):
SPECIFIC AIMS
Specific Aim 1: ‘Doing Science and Technology’ Learners should be able to complete investigations, analyse
problems and use practical processes and skills in designing
and evaluating solutions.
Specific Aim 2: ‘Understanding and connecting ideas’ Learners should have a grasp of scientific, technological and
environmental knowledge and be able to apply it in new
contexts.
Specific Aim 3: ‘Science, Technology and Society’ Learners should understand the practical uses of Natural
Sciences and Technology in society and the environment
and have values that make them caring and creative citizens.
STANDS
Planet Earth
Beyond
Life and living √ Energy and Change Matter and Materials
Major Process and Design Skills
Accessing and recalling information √ Planning investigations
Observing √ Doing investigations
Comparing √ Recording information
Measuring Interpreting information
Sorting and classifying Designing
√ Identifying problems and issues Making/constructing
Raising questions Evaluating and Improving products
Predicting Communicating
Hypothesizing
Relevant prior content knowledge: Link with next lesson:
Core knowledge/content: Vocabulary/Important words/Explanation of
terminology/New terms:
EXPANDED OPPORTUNITIES
Learners that have learning barriers are given an opportunity to repeat the same work that did not do well and
learner question are reduced to five question , correction are given to the learners , remedial class are given to
the learner to ensure that the learner is catered, one on one session with learners that need support.
ASSESSMENT
Formal Informal
Form of assessment: Tools Form of assessment: Tools

2. Electricityis
produced
Coldwaterfeedsthe
boiler
Steamis
produced
Burningcoal
Producesheat
Class work Memo
TEACHERS ACTIVITIES LEARNERS’ ACTIVITIES
Teachers notes
Fossil fuels and electricity
Fossil fuels were formed in the Earth’s crust
millions of years ago from dead plants and
animals.
coal, oil and natural gas are fossil fuels
In South Africa coal is mostly used as a fuel
in power stations.
coal was formed from fossilised plants which
got their energy from the Sun originally
in a power station coal is used to boil water,
the steam turns a turbine which turns a
generator, which produces electricity
Fossil fuels are non-renewable resources.
The main supplier of electricity in South Africa
is ESKOM. ESKOM uses mainly coal to
produce energy for industrial and household use.
Let's look at a power station to find out how coal
is used to produce electricity.
Look at the diagram below and the steps which
outline the process to make electricity from coal:
Activities: Investigations, practical work, and demonstrations
1. Drawing and writing about to explain how fossil fuels such
as coal were formed.
Fossil fuels were formed in the Earth’s crust millions of years
ago from dead plants and animals.
2. What are the three fossil fuels discussed in the above story.
Coal, oil and natural gas.
3. How many millions of years ago were this?
300 million years ago.
Activities: Investigations,practical work, and demonstrations
1. Drawing and writing to trace the electrical energy in a
Sequence from an appliance, such as from your TV set,to the coal-
fired power station and back to the original source, the Sun.
Activities: Test on mains electricity
Study the picture below that shows how electricity is generated from
coal in a power station.
RESOURCES: Pictures and video clips of fuels and their various uses , pictures to show how electricity is
generated in a coalfired power station.
Teacher’s comments/reflection:
HOD input: monitoring and support: Date: _________________________________
Signature: _____________________________
Coal supply turbine
generator

3. Class work Memo
TEACHERS ACTIVITIES LEARNERS’ ACTIVITIES
Teachers notes
Cost of electricity
electricity is costly because it requires
infrastructure including coal mines,
transport, power stations, pylons,
substations, wiring some electrical
appliances require more electricity than
others (heating appliances use the most)
the more electricity we use the more we
pay and the more coal is used up.
we can save energy in many ways
including using energy saving light bulbs
and solar water heaters
Illegal connections
illegal electrical connections are a danger
to people because they are often unsafe.
Renewable ways to generate electricity
.
Investigations, practical work, and demonstrations
Examining labels (in adverts, or real electrical appliances)
to find out how much power they require (most kettles
require more than 2000 W, whilst a radio might require
about 15 W*). Recording findings on a table.
Appliance or
device
Power in W or kW Power in watt (W)
Cell phone charger 240 V and 150 mA 36 W
Electric kettle 2 kW 2000 W
Television set 60 W 60 W
Light bulb (old
type)
100 W 100 W
Energy saving
light bulb
15 W 15 W
Computer 230 V and 500 mA 115 W
Electric iron 1.4 kW 1400 W
Investigations, practical work, and demonstrations
Researching and writing about renewable ways to
generate electricity including in wind power generators,
solar panels (photovoltaics)**, hydro- electric power
generators.
Wind Power
Advantages Disadvantages
Solar panels
Advantages Disadvantages
Hydro- electric power
Advantages Disadvantages
RESOURCES: Pictures of renewable ways to generate electricity, including examples of wind power generators,solar
power generators, hydro- electric power generators.
Teacher’s comments/reflection:
HOD input: monitoring and support: Date: _________________________________
Signature: _____________________________
Wind turbines use
wind to generate
electricity.
A water wheeluses
the flow of water to
push the wheel around
which can then do
work
A large hydroelectric
power station. As the
water flows from the
higher
dam, through the
station to the
lower dam, electricity
is made. 5
Solar panels. 6

4. NATURAL SCIENCES AND TECHNOLOGY LESSON PREPARATION
Subject: Natural sciences and Technology Grade: Six
Topic: Mains electricity Time in weeks: 2 ½ weeks
Date started (actual): Date completed (actual):
SPECIFIC AIMS
Specific Aim 1: ‘Doing Science and Technology’ Learners should be able to complete investigations, analyse
problems and use practical processes and skills in designing
and evaluating solutions.
Specific Aim 2: ‘Understanding and connecting ideas’ Learners should have a grasp of scientific, technological and
environmental knowledge and be able to apply it in new
contexts.
Specific Aim 3: ‘Science, Technology and Society’ Learners should understand the practical uses of Natural
Sciences and Technology in society and the environment
and have values that make them caring and creative citizens.
STANDS
Planet Earth
Beyond
Life and living √ Energy and Change Matter and Materials
Major Process and Design Skills
Accessing and recalling information Planning investigations
Observing √ Doing investigations
Comparing √ Recording information
Measuring Interpreting information
Sorting and classifying Designing
√ Identifying problems and issues Making/constructing
Raising questions Evaluating and Improving products
Predicting Communicating
√ Hypothesizing
Relevant prior content knowledge: Link with next lesson:
Core knowledge/content: Vocabulary/Important words/Explanation of
terminology/New terms:
EXPANDED OPPORTUNITIES
Learners that have learning barriers are given an opportunity to repeat the same work that did not do well and
learner question are reduced to five question , correction are given to the learners , remedial class are given to
the learner to ensure that the learner is catered, one on one session with learners that need support.
ASSESSMENT
Formal Informal
Form of assessment: Tools Form of assessment: Tools